Sounds like a story there! When I started my restaurant in Paris I put a lot of thought into the direction and theme and subsequently the name. I started with a culinary map of the world (in my mind), but ended up with a simple menu that I felt strongly would attract clientele. It worked. I took more time deciding on the theme, menu and name than I did the decision to open my cafe.
I lived in OC as well as Long Beach and the Valley and spent a decade in SoCal restaurants, tasting the finest to seek the next great dish. I just spent the summer in Europe on a culinary expedition and frankly was a bit disappointed in the variety. I am leaving in January for a three months to explore the herbs and sauces of Southern Italy. Why? No matter how good we think we are in this artistry, pallets change, as does the need for consistency and connection with what we grew up with. One of the reasons I asked about the demographics.
Hungarian and French...interesting. For Mexican, Have you been to Oaxaca? A must trip someday - the spices are amazing!
One of my favorite joints in the OC was an Italian restaurant in Santa Ana. The chef/owner is 84, and opens only for lunch. It has popcorn ceilings and looks like something that came out of Sicily. The food - terrific. The owner will sit and smoke a cigar with and have a glass of wine with you when the kitchen is closed and talk about his dishes.
With the cooking craze that is going on now I think it is important not to get swept up in trying to be like the rest and too creative. Just stick to basics and sounds like you have it - fresh, organic when possible, making what you like.
Good Luck!